Liquid-hydrocarbon burner of the injector type



A. W. H. VIVIAN.

LIQUID HYDROCARBON BURNER OF THE INJECTOR TYPE.

APPLICATION FILED NOV. B11919.

Patented Mar. 2, 1920.

3 SHEETS-SHEET I III III

A. W. H. VIVIAN.

LIQUID HYDROCARBON BURNER OF THE INJECTOR TYPE.

APPLICATION FILED NOV.B. I919.

1,332,782. Patented Mar. 2,1920.

3 SHEETS-SHEET 2- 1 is; I &1 I

A. W. H. VIVIAN.

LIQUID HYDROCARBON BURNER OF THE INJECTOR TYPE.

APPLICATION FILED NOV.8. I919.

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AVANDO W. H. VIVIAN, 01E WESTMINSTER, LONDON, ENGLAND.

LIQUID-HYDROCARBON BURNER OF THE INJECTOR TYPE.

Specification of Letters Patent.

Patented Mar. 2, 1920.

Application filed November 8, 1919. Serial No. 336,629. I

To all whom, it may concern:

Be it known that I, AVANDO WARREN HUSSEY VIVIAN, engineer, a subject of the King of Great Britain, residing at 36 Victoria street, Westminster, London, England, have invented certain new and useful Improvements in or Relating to Liquid-Hydrocarbon Burners of the Injector Type, of which the following is a specification.

This invention has for its object improvements in or relating to liquid hydrocarbon burners of the injector-type of the known kind having a tubular longitudinal body or barrel portion (extending practically from end to end of the burner) provided with two annular enlargements spaced apart along the central longitudinal passage or bore of said body portion or barrel and concentric with the longitudinal axis of said passage or bore and having the latter tapered between the front of the two said enlargements and the front end of the said barrel; an injector at the rear end of said body portion or barrel adapted to inject air under pressure co-axially with the longitudinal axis of the said bore or passage through said tubular body portion or barrel means to permit air (at atmospheric pressure) to be introduced into the aforesaid annular enlargements, means to introdu e the liquid hvdro carbons laterally into the said central passage or bore of the said body portion or barrel and an annular chamber or steam jacket surrounding the said central passage or bore of said body or barrel toward the front end thereof from which steam or steam and air under pressure can be delivered in a ring around the central jet issuing from the aforesaid central passage or bore in suchwise as to cut the diverging lines of path of the said central jet; see British patent specification No. 106839.

Now the present invention refers to the aforesaid known type of burner and comprises the following improvements:

(1.) The central longitudinal passage or bore through the body portion or barrel is tapered throughout its entire length and furthermore is also differentially tapered '5. e. the taper or conicity of said passage or bore is greater at or toward the front (outlet) end of the burner than that of the rear portion of said conical passage or bore.

(2.) Each of the two annular enlargements spaced apart along said central longitudinal (tapering) bore or passage is formed interiorly of sphericalor approximately sphericalshape according to this invention.

The air inlets for collecting the atmospheric air, which is sucked (from the outside atmosphere) into the said respective spherical shaped annular enlargements, are directed forwardly and are located around the outside of the front (outlet) end of the burner and may advantageously extend to a point beyond e. in front of) the said front end of the burner so as to be located in the zone of heat caused by said burner and thus collect air which is already more or less highly heated when it enters said air inlets.

In conjunction with the foregoing improvements; I combine and arrange means (such as are already known) to produce an annular ring of jetsor an annular ringof air (or air and steam) under pressure which is caused to issue around the central jet issuing from said differentially tapering passage or bore so that said annular ring of air (or air and steam) will cut the diverging lines of path of the said central jet and thus intimately mix or intermingle said ring of air (or air and steam) under pressure with the said central iet.

I will now fully describe my present invention with reference to the accompanying drawings in which Figure 1 is a longitudinal vertical sectional view through the center of the barrel of the burner.

Fig. 2 is a longitudinal side view in elevation of the burner showing the external air collecting members directed forwardly and extending to a point beyond the front end of the burner.

Fig. 3 is an end view on a smaller scale of Fig. 2 looking in the direction of the arrow as Fig. 2.

A is the main body or barrel of the burner, the central longitudinal passage or bore B, B B of which is tapered throughout; such tapering being accentuated or increased toward the front (outlet) end of the burner between the points B B C and D are two chambers formed by annular enlargements of the aforesaid bore. the internal shape of each of which said chambers is spherical or approximately spherical; which enlargements are spaced apart along the barrel of the burner as shown, the forward enlargment D being of greater size than the rearward enlargement C.

E is the nozzle-of the-injector of a known type (or same may be of any other suitable type) located at the rear end of the body A and arranged and adapted to inject air under pressure co-axially with the longitudinal axis of the said tapering bore or pas sage B, B B said. injector delivering said air into and, across the center of the rear enlargement C.

F. F. are interior air collecting members (pipes) the rear end of each of whlcih leads into the enlargement C and the front end of each of which is provided with the bell-s mouth collecting inlet F each located to one side of but just in advance of the front end A of the burner body A so as thusto collect air around the front end of the body A and deliver same intothe enlargement C. 1

G. G. are similar outside air collecting members (pipes) leading at the rear end thereof into the enlargement D and at the front end thereof each provided with a collecting bell-mouth or inlet G1 for collecting air around the front end of the burner body A and delivering same into the enlargement D.

H is the passage through which is deli\' ered the fuel (liquid hydrocarbons) into the central passage or boreB of said burner.

I is an annular chamber to which compressed air (or air and steam) is supplied from any suitablesource; from which annular chamber I said compressd air '(or air (and steam) isdelivered forwardly in a ring from the front end of the burner through the jet orifices or curvedslots J these latter being arranged to deliver said ring of air (or air and steam) concentrically around and parallel with the longitudinal axis of the centralbore. throughsaid burneri.

,this ring of air (or air and steam). is delivbottom side of the burner body and provided with a hole A for pivotally mounting said burner body A upon, any-suitable support (which latter may be an adjustable support) so that said burner can be adj usted, i. e. raised or lowered bodily or tilted (elevated or depressed) or deflected, and then fixedly secured in whatever position said burner has been adjusted.

What I claim is 1. A burner of the character described, comprising abody portion provided with two substantially spherical expansion chambers therein, with an expanding passage between the two'chambers, and alargerexpanding passage exterior tothe second expansion chamber, a pipe for conveying air under pressure opening into the first expansion chamber, means for supplying liquid fuel to the passage between said chambers, and suction pipes opening at their rear ends into said expansion chambers, respectively, and provided at their forward, ends with bell mouths projecting forward of said burner and close to the stream of hot gases flowing from said burner, substantially as described.

2. A burner of the character described,

comprising a body portion provided with two substantially spherical expansion chambers therein with an expanding passage between thetwo chambers, and a largerexpanding passage exterior to the second expansion chamber, the second passage being surrounded by an annular chamber adapted to receive steam, or air and steam, and protheir rear ends into said expansion chambers, respectively, and provided at their forward ends withbell -mouths projecting forward of said burner and-close to the stream of hot-gases 'fiowing from said burner, substantially as described.

aw. H. VIVIAN. 

